1020 Flat Plastic Tray Bottom.
1020 Flat Plastic Tray Bottom. at HorticultureSource.com -
Plastic Tray Bottom (1020 Flat) Used to hold rockwool cubes, Jiffy pellets or soil for seed/cuttings. This tray has holes for drainage. 10" x 20" tray: Interior measurements are on the top 10 1/4 inches by 10 1/2 inches at the rim but the bottom interior is 10" x 20 " inches.